Answer:
Given:
The system of linear equations in matrix form may be written as:
AX=B,
where,
A is coefficient matrix of order and is given by:
A =
X is variable matrix of order and is given by:
X=
and B is the contant matrix of order and is given by:
B =
Now, AX=B
. =
~
B
Step-by-step explanation:
21×1=21
21×2=42
21×5=105